Barium Carbonate powder Molecular Formula: BaCO3; Molecular Weight:197.34 Hazard Class: 6.1 UN No.:1564 Packing Group:III Barium Carbonate PowderUses: 1, desulfurization in the production of pentasodium phosphate. 2, used to handle sewage containing chrome3, used to produce glass products4, used to produce radioceramic. 5, used to produce carburizer. 6, used as flux . 7, used as water purifier ...